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[/] [test_project/] [trunk/] [linux_sd_driver/] [include/] [linux/] [elf.h] - Blame information for rev 81

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1 62 marcus.erl
#ifndef _LINUX_ELF_H
2
#define _LINUX_ELF_H
3
 
4
#include <linux/types.h>
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#include <linux/elf-em.h>
6
#include <asm/elf.h>
7
 
8
struct file;
9
 
10
#ifndef elf_read_implies_exec
11
  /* Executables for which elf_read_implies_exec() returns TRUE will
12
     have the READ_IMPLIES_EXEC personality flag set automatically.
13
     Override in asm/elf.h as needed.  */
14
# define elf_read_implies_exec(ex, have_pt_gnu_stack)   0
15
#endif
16
 
17
/* 32-bit ELF base types. */
18
typedef __u32   Elf32_Addr;
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typedef __u16   Elf32_Half;
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typedef __u32   Elf32_Off;
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typedef __s32   Elf32_Sword;
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typedef __u32   Elf32_Word;
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24
/* 64-bit ELF base types. */
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typedef __u64   Elf64_Addr;
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typedef __u16   Elf64_Half;
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typedef __s16   Elf64_SHalf;
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typedef __u64   Elf64_Off;
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typedef __s32   Elf64_Sword;
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typedef __u32   Elf64_Word;
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typedef __u64   Elf64_Xword;
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typedef __s64   Elf64_Sxword;
33
 
34
/* These constants are for the segment types stored in the image headers */
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#define PT_NULL    0
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#define PT_LOAD    1
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#define PT_DYNAMIC 2
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#define PT_INTERP  3
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#define PT_NOTE    4
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#define PT_SHLIB   5
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#define PT_PHDR    6
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#define PT_TLS     7               /* Thread local storage segment */
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#define PT_LOOS    0x60000000      /* OS-specific */
44
#define PT_HIOS    0x6fffffff      /* OS-specific */
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#define PT_LOPROC  0x70000000
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#define PT_HIPROC  0x7fffffff
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#define PT_GNU_EH_FRAME         0x6474e550
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49
#define PT_GNU_STACK    (PT_LOOS + 0x474e551)
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51
/* These constants define the different elf file types */
52
#define ET_NONE   0
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#define ET_REL    1
54
#define ET_EXEC   2
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#define ET_DYN    3
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#define ET_CORE   4
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#define ET_LOPROC 0xff00
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#define ET_HIPROC 0xffff
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60
/* This is the info that is needed to parse the dynamic section of the file */
61
#define DT_NULL         0
62
#define DT_NEEDED       1
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#define DT_PLTRELSZ     2
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#define DT_PLTGOT       3
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#define DT_HASH         4
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#define DT_STRTAB       5
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#define DT_SYMTAB       6
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#define DT_RELA         7
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#define DT_RELASZ       8
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#define DT_RELAENT      9
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#define DT_STRSZ        10
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#define DT_SYMENT       11
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#define DT_INIT         12
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#define DT_FINI         13
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#define DT_SONAME       14
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#define DT_RPATH        15
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#define DT_SYMBOLIC     16
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#define DT_REL          17
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#define DT_RELSZ        18
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#define DT_RELENT       19
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#define DT_PLTREL       20
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#define DT_DEBUG        21
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#define DT_TEXTREL      22
84
#define DT_JMPREL       23
85
#define DT_ENCODING     32
86
#define OLD_DT_LOOS     0x60000000
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#define DT_LOOS         0x6000000d
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#define DT_HIOS         0x6ffff000
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#define DT_VALRNGLO     0x6ffffd00
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#define DT_VALRNGHI     0x6ffffdff
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#define DT_ADDRRNGLO    0x6ffffe00
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#define DT_ADDRRNGHI    0x6ffffeff
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#define DT_VERSYM       0x6ffffff0
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#define DT_RELACOUNT    0x6ffffff9
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#define DT_RELCOUNT     0x6ffffffa
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#define DT_FLAGS_1      0x6ffffffb
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#define DT_VERDEF       0x6ffffffc
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#define DT_VERDEFNUM    0x6ffffffd
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#define DT_VERNEED      0x6ffffffe
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#define DT_VERNEEDNUM   0x6fffffff
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#define OLD_DT_HIOS     0x6fffffff
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#define DT_LOPROC       0x70000000
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#define DT_HIPROC       0x7fffffff
104
 
105
/* This info is needed when parsing the symbol table */
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#define STB_LOCAL  0
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#define STB_GLOBAL 1
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#define STB_WEAK   2
109
 
110
#define STT_NOTYPE  0
111
#define STT_OBJECT  1
112
#define STT_FUNC    2
113
#define STT_SECTION 3
114
#define STT_FILE    4
115
#define STT_COMMON  5
116
#define STT_TLS     6
117
 
118
#define ELF_ST_BIND(x)          ((x) >> 4)
119
#define ELF_ST_TYPE(x)          (((unsigned int) x) & 0xf)
120
#define ELF32_ST_BIND(x)        ELF_ST_BIND(x)
121
#define ELF32_ST_TYPE(x)        ELF_ST_TYPE(x)
122
#define ELF64_ST_BIND(x)        ELF_ST_BIND(x)
123
#define ELF64_ST_TYPE(x)        ELF_ST_TYPE(x)
124
 
125
typedef struct dynamic{
126
  Elf32_Sword d_tag;
127
  union{
128
    Elf32_Sword d_val;
129
    Elf32_Addr  d_ptr;
130
  } d_un;
131
} Elf32_Dyn;
132
 
133
typedef struct {
134
  Elf64_Sxword d_tag;           /* entry tag value */
135
  union {
136
    Elf64_Xword d_val;
137
    Elf64_Addr d_ptr;
138
  } d_un;
139
} Elf64_Dyn;
140
 
141
/* The following are used with relocations */
142
#define ELF32_R_SYM(x) ((x) >> 8)
143
#define ELF32_R_TYPE(x) ((x) & 0xff)
144
 
145
#define ELF64_R_SYM(i)                  ((i) >> 32)
146
#define ELF64_R_TYPE(i)                 ((i) & 0xffffffff)
147
 
148
typedef struct elf32_rel {
149
  Elf32_Addr    r_offset;
150
  Elf32_Word    r_info;
151
} Elf32_Rel;
152
 
153
typedef struct elf64_rel {
154
  Elf64_Addr r_offset;  /* Location at which to apply the action */
155
  Elf64_Xword r_info;   /* index and type of relocation */
156
} Elf64_Rel;
157
 
158
typedef struct elf32_rela{
159
  Elf32_Addr    r_offset;
160
  Elf32_Word    r_info;
161
  Elf32_Sword   r_addend;
162
} Elf32_Rela;
163
 
164
typedef struct elf64_rela {
165
  Elf64_Addr r_offset;  /* Location at which to apply the action */
166
  Elf64_Xword r_info;   /* index and type of relocation */
167
  Elf64_Sxword r_addend;        /* Constant addend used to compute value */
168
} Elf64_Rela;
169
 
170
typedef struct elf32_sym{
171
  Elf32_Word    st_name;
172
  Elf32_Addr    st_value;
173
  Elf32_Word    st_size;
174
  unsigned char st_info;
175
  unsigned char st_other;
176
  Elf32_Half    st_shndx;
177
} Elf32_Sym;
178
 
179
typedef struct elf64_sym {
180
  Elf64_Word st_name;           /* Symbol name, index in string tbl */
181
  unsigned char st_info;        /* Type and binding attributes */
182
  unsigned char st_other;       /* No defined meaning, 0 */
183
  Elf64_Half st_shndx;          /* Associated section index */
184
  Elf64_Addr st_value;          /* Value of the symbol */
185
  Elf64_Xword st_size;          /* Associated symbol size */
186
} Elf64_Sym;
187
 
188
 
189
#define EI_NIDENT       16
190
 
191
typedef struct elf32_hdr{
192
  unsigned char e_ident[EI_NIDENT];
193
  Elf32_Half    e_type;
194
  Elf32_Half    e_machine;
195
  Elf32_Word    e_version;
196
  Elf32_Addr    e_entry;  /* Entry point */
197
  Elf32_Off     e_phoff;
198
  Elf32_Off     e_shoff;
199
  Elf32_Word    e_flags;
200
  Elf32_Half    e_ehsize;
201
  Elf32_Half    e_phentsize;
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  Elf32_Half    e_phnum;
203
  Elf32_Half    e_shentsize;
204
  Elf32_Half    e_shnum;
205
  Elf32_Half    e_shstrndx;
206
} Elf32_Ehdr;
207
 
208
typedef struct elf64_hdr {
209
  unsigned char e_ident[16];            /* ELF "magic number" */
210
  Elf64_Half e_type;
211
  Elf64_Half e_machine;
212
  Elf64_Word e_version;
213
  Elf64_Addr e_entry;           /* Entry point virtual address */
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  Elf64_Off e_phoff;            /* Program header table file offset */
215
  Elf64_Off e_shoff;            /* Section header table file offset */
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  Elf64_Word e_flags;
217
  Elf64_Half e_ehsize;
218
  Elf64_Half e_phentsize;
219
  Elf64_Half e_phnum;
220
  Elf64_Half e_shentsize;
221
  Elf64_Half e_shnum;
222
  Elf64_Half e_shstrndx;
223
} Elf64_Ehdr;
224
 
225
/* These constants define the permissions on sections in the program
226
   header, p_flags. */
227
#define PF_R            0x4
228
#define PF_W            0x2
229
#define PF_X            0x1
230
 
231
typedef struct elf32_phdr{
232
  Elf32_Word    p_type;
233
  Elf32_Off     p_offset;
234
  Elf32_Addr    p_vaddr;
235
  Elf32_Addr    p_paddr;
236
  Elf32_Word    p_filesz;
237
  Elf32_Word    p_memsz;
238
  Elf32_Word    p_flags;
239
  Elf32_Word    p_align;
240
} Elf32_Phdr;
241
 
242
typedef struct elf64_phdr {
243
  Elf64_Word p_type;
244
  Elf64_Word p_flags;
245
  Elf64_Off p_offset;           /* Segment file offset */
246
  Elf64_Addr p_vaddr;           /* Segment virtual address */
247
  Elf64_Addr p_paddr;           /* Segment physical address */
248
  Elf64_Xword p_filesz;         /* Segment size in file */
249
  Elf64_Xword p_memsz;          /* Segment size in memory */
250
  Elf64_Xword p_align;          /* Segment alignment, file & memory */
251
} Elf64_Phdr;
252
 
253
/* sh_type */
254
#define SHT_NULL        0
255
#define SHT_PROGBITS    1
256
#define SHT_SYMTAB      2
257
#define SHT_STRTAB      3
258
#define SHT_RELA        4
259
#define SHT_HASH        5
260
#define SHT_DYNAMIC     6
261
#define SHT_NOTE        7
262
#define SHT_NOBITS      8
263
#define SHT_REL         9
264
#define SHT_SHLIB       10
265
#define SHT_DYNSYM      11
266
#define SHT_NUM         12
267
#define SHT_LOPROC      0x70000000
268
#define SHT_HIPROC      0x7fffffff
269
#define SHT_LOUSER      0x80000000
270
#define SHT_HIUSER      0xffffffff
271
 
272
/* sh_flags */
273
#define SHF_WRITE       0x1
274
#define SHF_ALLOC       0x2
275
#define SHF_EXECINSTR   0x4
276
#define SHF_MASKPROC    0xf0000000
277
 
278
/* special section indexes */
279
#define SHN_UNDEF       0
280
#define SHN_LORESERVE   0xff00
281
#define SHN_LOPROC      0xff00
282
#define SHN_HIPROC      0xff1f
283
#define SHN_ABS         0xfff1
284
#define SHN_COMMON      0xfff2
285
#define SHN_HIRESERVE   0xffff
286
 
287
typedef struct {
288
  Elf32_Word    sh_name;
289
  Elf32_Word    sh_type;
290
  Elf32_Word    sh_flags;
291
  Elf32_Addr    sh_addr;
292
  Elf32_Off     sh_offset;
293
  Elf32_Word    sh_size;
294
  Elf32_Word    sh_link;
295
  Elf32_Word    sh_info;
296
  Elf32_Word    sh_addralign;
297
  Elf32_Word    sh_entsize;
298
} Elf32_Shdr;
299
 
300
typedef struct elf64_shdr {
301
  Elf64_Word sh_name;           /* Section name, index in string tbl */
302
  Elf64_Word sh_type;           /* Type of section */
303
  Elf64_Xword sh_flags;         /* Miscellaneous section attributes */
304
  Elf64_Addr sh_addr;           /* Section virtual addr at execution */
305
  Elf64_Off sh_offset;          /* Section file offset */
306
  Elf64_Xword sh_size;          /* Size of section in bytes */
307
  Elf64_Word sh_link;           /* Index of another section */
308
  Elf64_Word sh_info;           /* Additional section information */
309
  Elf64_Xword sh_addralign;     /* Section alignment */
310
  Elf64_Xword sh_entsize;       /* Entry size if section holds table */
311
} Elf64_Shdr;
312
 
313
#define EI_MAG0         0                /* e_ident[] indexes */
314
#define EI_MAG1         1
315
#define EI_MAG2         2
316
#define EI_MAG3         3
317
#define EI_CLASS        4
318
#define EI_DATA         5
319
#define EI_VERSION      6
320
#define EI_OSABI        7
321
#define EI_PAD          8
322
 
323
#define ELFMAG0         0x7f            /* EI_MAG */
324
#define ELFMAG1         'E'
325
#define ELFMAG2         'L'
326
#define ELFMAG3         'F'
327
#define ELFMAG          "\177ELF"
328
#define SELFMAG         4
329
 
330
#define ELFCLASSNONE    0                /* EI_CLASS */
331
#define ELFCLASS32      1
332
#define ELFCLASS64      2
333
#define ELFCLASSNUM     3
334
 
335
#define ELFDATANONE     0                /* e_ident[EI_DATA] */
336
#define ELFDATA2LSB     1
337
#define ELFDATA2MSB     2
338
 
339
#define EV_NONE         0                /* e_version, EI_VERSION */
340
#define EV_CURRENT      1
341
#define EV_NUM          2
342
 
343
#define ELFOSABI_NONE   0
344
#define ELFOSABI_LINUX  3
345
 
346
#ifndef ELF_OSABI
347
#define ELF_OSABI ELFOSABI_NONE
348
#endif
349
 
350
/* Notes used in ET_CORE */
351
#define NT_PRSTATUS     1
352
#define NT_PRFPREG      2
353
#define NT_PRPSINFO     3
354
#define NT_TASKSTRUCT   4
355
#define NT_AUXV         6
356
#define NT_PRXFPREG     0x46e62b7f      /* copied from gdb5.1/include/elf/common.h */
357
#define NT_PPC_VMX      0x100           /* PowerPC Altivec/VMX registers */
358
 
359
 
360
/* Note header in a PT_NOTE section */
361
typedef struct elf32_note {
362
  Elf32_Word    n_namesz;       /* Name size */
363
  Elf32_Word    n_descsz;       /* Content size */
364
  Elf32_Word    n_type;         /* Content type */
365
} Elf32_Nhdr;
366
 
367
/* Note header in a PT_NOTE section */
368
typedef struct elf64_note {
369
  Elf64_Word n_namesz;  /* Name size */
370
  Elf64_Word n_descsz;  /* Content size */
371
  Elf64_Word n_type;    /* Content type */
372
} Elf64_Nhdr;
373
 
374
#if ELF_CLASS == ELFCLASS32
375
 
376
extern Elf32_Dyn _DYNAMIC [];
377
#define elfhdr          elf32_hdr
378
#define elf_phdr        elf32_phdr
379
#define elf_note        elf32_note
380
#define elf_addr_t      Elf32_Off
381
 
382
#else
383
 
384
extern Elf64_Dyn _DYNAMIC [];
385
#define elfhdr          elf64_hdr
386
#define elf_phdr        elf64_phdr
387
#define elf_note        elf64_note
388
#define elf_addr_t      Elf64_Off
389
 
390
#endif
391
 
392
/* Optional callbacks to write extra ELF notes. */
393
#ifndef ARCH_HAVE_EXTRA_ELF_NOTES
394
static inline int elf_coredump_extra_notes_size(void) { return 0; }
395
static inline int elf_coredump_extra_notes_write(struct file *file,
396
                        loff_t *foffset) { return 0; }
397
#else
398
extern int elf_coredump_extra_notes_size(void);
399
extern int elf_coredump_extra_notes_write(struct file *file, loff_t *foffset);
400
#endif
401
 
402
#endif /* _LINUX_ELF_H */

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